Shockwaves in cloud cavitation can be visualised using high-speed imaging from both top and side view. While this technique does not yield direct quantitative data, it captures pixel intensity variations that correlate with local void or air–liquid fractions—offering valuable insight into flow dynamics. Data such as characteristic lengths, times or velocities can be extracted from high-speed imaging. Below is a sample video illustrating a propagating shockwave in cloud cavitation about a Circular Leading Edge (CLE) hydrofoil. The CLE hydrofoil has been developed at the Technische Universität Darmstadt to mimic both the geometry of the tip of a pump impeller. The experiments were conducted as a part of a project funded by the Federal Ministry for Economic Affairs and Energy (BMWK) on the basis of a decision by the German Bundestag. There, we worked together with the University of Bochum and the pump industry to develop a tool to predict and control cavitation erosion.